Why are multiple years listed?

A minor may have somewhat different requirements when you first consider it than when you graduate. Weinberg College students can follow the requirements in any version of the undergraduate catalog that was in effect while they were undergraduates at Northwestern. (There can be limits to this if you take a long break from your studies.)

For example, students who graduated in 2013 could choose to follow the requirements in the 2012-2013 catalog, which was published during their senior year, or the requirements in the 2009-2010 catalog, which was the newest one when most of them were freshmen.